Update perf expectations to account for new credits.html update from

tools/perf_expectations/perf_expectations.json

Index: tools/perf_expectations/perf_expectations.json
===================================================================
--- tools/perf_expectations/perf_expectations.json	(revision 119932)
+++ tools/perf_expectations/perf_expectations.json	(working copy)
@@ -2,7 +2,7 @@
  "linux-release-64/sizes/chrome-data/data": {"reva": 91119, "revb": 91326, "type": "absolute", "improve": 2309480, "regress": 2557742, "sha1": "fd84a9d2"},
  "linux-release-64/sizes/chrome-si/initializers": {"reva": 119680, "revb": 119680, "type": "absolute", "better": "lower", "improve": 115, "regress": 115, "tolerance": 0, "sha1": "73d7ba41"},
  "linux-release-64/sizes/chrome-text/text": {"reva": 117439, "revb": 117775, "type": "absolute", "better": "lower", "improve": 66973037, "regress": 74103542, "sha1": "8d7a2af1"},
- "linux-release-64/sizes/chrome.pak/chrome.pak": {"reva": 117439, "revb": 11775, "type": "absolute", "improve": 2882908, "regress": 3403299, "sha1": "bb5b6bda"},
+ "linux-release-64/sizes/chrome.pak/chrome.pak": {"reva": 119925, "revb": 119925, "type": "absolute", "better": "lower", "improve": 3295864, "regress": 3642798, "sha1": "c555551f"},
  "linux-release-64/sizes/chrome/chrome": {"reva": 117439, "revb": 117775, "type": "absolute", "improve": 86130884, "regress": 95316353, "sha1": "aa960d76"},
  "linux-release-64/sizes/nacl_helper-bss/bss": {"reva": 114822, "revb": 115019, "type": "absolute", "better": "lower", "improve": 404247, "regress": 446801, "sha1": "cfbfdb21"},
  "linux-release-64/sizes/nacl_helper-data/data": {"reva": 114822, "revb": 115019, "type": "absolute", "better": "lower", "improve": 30707, "regress": 33941, "sha1": "8800b912"},
@@ -62,7 +62,7 @@
  "linux-release/sizes/chrome-si/initializers": {"reva": 119680, "revb": 119680, "type": "absolute", "better": "lower", "improve": 116, "regress": 116, "tolerance": 0, "sha1": "468b54c9"},
  "linux-release/sizes/chrome-text/text": {"reva": 117439, "revb": 117775, "type": "absolute", "improve": 59054335, "regress": 65337642, "sha1": "e6501007"},
  "linux-release/sizes/chrome-textrel/textrel": {"reva": 117299, "revb": 117299, "type": "absolute", "better": "lower", "improve": 0, "regress": 0, "sha1": "9d728667"},
- "linux-release/sizes/chrome.pak/chrome.pak": {"reva": 117439, "revb": 117775, "type": "absolute", "improve": 3079175, "regress": 3409683, "sha1": "862cf926"},
+ "linux-release/sizes/chrome.pak/chrome.pak": {"reva": 119931, "revb": 119931, "type": "absolute", "better": "lower", "improve": 3295864, "regress": 3642798, "sha1": "4e4f437e"},
  "linux-release/sizes/chrome/chrome": {"reva": 117429, "revb": 11775, "type": "absolute", "improve": 70764455, "regress": 84927545, "sha1": "2083cd1c"},
  "linux-release/sizes/libffmpegsumo.so-textrel/textrel": {"reva": 117081, "revb": 117299, "type": "absolute", "better": "lower", "improve": 5768, "regress": 6376, "sha1": "09c92582"},
  "linux-release/sizes/nacl_helper-bss/bss": {"reva": 114822, "revb": 115019, "type": "absolute", "better": "lower", "improve": 209972, "regress": 232076, "sha1": "d37376b8"},